1897759

Information

• Patent Grant
• 1897759

• References
• Source

• Patent Number

  1,897,759

• Date Filed

  Not available

• Date Issued

  Tuesday, February 14, 1933
  92 years ago

• CPC

  • F24D3/147 - arranged in facades

• US Classifications

  • 237 - Heating systems
  • 165 - Heat exchange